I am looking for two matching (will certainly take one at a time) Air Variables from the 30s. Hammarlund 23 plate 225 pf. (max) TC-225-B Variable Hammarlund Mfg. Co. 225 uuf full capacitance 3500 Vdc Rating (0.080 in Spacing) These have a cast frame and the PN TC-225-B stamped in one end on the boss. Thanks for looking. Bill